/**
 * Roster (Planification) API — appelle targo-hub /roster/*.
 * Le backend lit les techs/modèles/besoins dans ERPNext facturation et appelle
 * le solveur OR-Tools. Voir services/targo-hub/lib/roster.js.
 */
import { HUB_URL as HUB } from 'src/config/hub'

async function jget (path) {
  const r = await fetch(HUB + path)
  if (!r.ok) throw new Error('Roster API ' + r.status)
  return r.json()
}
async function jpost (path, body) {
  const r = await fetch(HUB + path, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify(body || {}),
  })
  if (!r.ok) throw new Error('Roster API ' + r.status)
  return r.json()
}
async function jput (path, body) {
  const r = await fetch(HUB + path, { method: 'PUT', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(body || {}) })
  if (!r.ok) throw new Error('Roster API ' + r.status)
  return r.json()
}

export const listTechnicians = () => jget('/roster/technicians')
export const listTemplates = () => jget('/roster/templates')
export const createTemplate = (t) => jpost('/roster/templates', t)
export const listRequirements = (start, days = 7) => jget(`/roster/requirements?start=${start}&days=${days}`)
export const createRequirement = (r) => jpost('/roster/requirements', r)
export const listAssignments = (start, days = 7) => jget(`/roster/assignments?start=${start}&days=${days}`)
export const getCoverage = (start, days = 7) => jget(`/roster/coverage?start=${start}&days=${days}`)
export const getStats = (start, days = 7) => jget(`/roster/stats?start=${start}&days=${days}`)
export const getOccupancy = (start, days = 7) => jget(`/roster/occupancy?start=${start}&days=${days}`)
export const getAbsences = (start, days = 7) => jget(`/roster/absences?start=${start}&days=${days}`)
export const applyGardeHorizon = (start, weeks, assignments, shifts) => jpost('/roster/garde/apply', { start, weeks, assignments, shifts })
export const setAbsence = (tech, date, type, remove) => jpost('/roster/absence/set', { tech, date, type, remove })
export const generate = (start, days = 7, weights) => jpost('/roster/generate', { start, days, weights })
export const publish = (assignments) => jpost('/roster/publish', { assignments })
export const publishWeek = (start, days, assignments, notify) => jpost('/roster/publish-week', { start, days, assignments, notify })
export const updateTemplate = (name, patch) => jput('/roster/template/' + encodeURIComponent(name), patch)

// ── Copilote (Gemini Flash) + politique de reprise ──
export const askAssistant = (message, history) => jpost('/roster/assistant', { message, history })
export const getPolicy = () => jget('/roster/policy')
export const savePolicy = (policy) => jpost('/roster/policy', policy)
export async function deleteShiftTemplate (name) {
  const r = await fetch(HUB + '/roster/template/' + encodeURIComponent(name), { method: 'DELETE' })
  if (!r.ok) throw new Error('Suppression modèle: ' + r.status)
  return r.json()
}
export const bulkRequirements = (requirements) => jpost('/roster/requirements/bulk', { requirements })
export const clearRequirements = (start, days = 7) => jpost('/roster/requirements/clear', { start, days })
export async function deleteAssignment (name) {
  const r = await fetch(HUB + '/roster/assignment/' + encodeURIComponent(name), { method: 'DELETE' })
  if (!r.ok) throw new Error('Suppression échouée: ' + r.status)
  return r.json()
}
export const listAvailability = (status) => jget('/roster/availability' + (status ? '?status=' + encodeURIComponent(status) : ''))
export const requestAvailability = (a) => jpost('/roster/availability', a)
export const approveAvailability = (name, body) => jpost('/roster/availability/' + encodeURIComponent(name) + '/approve', body || {})
export const pauseTechnician = (id, paused, reason) => jpost(`/roster/technician/${encodeURIComponent(id)}/pause`, { paused, reason })
export const setTechEfficiency = (id, efficiency) => jpost(`/roster/technician/${encodeURIComponent(id)}/efficiency`, { efficiency })
export const setTechCost = (id, body) => jpost(`/roster/technician/${encodeURIComponent(id)}/cost`, body)
export const setTechSkills = (id, skills, skillLevels, skillEff) => { const body = { skills }; if (skillLevels !== undefined) body.skill_levels = skillLevels; if (skillEff !== undefined) body.skill_eff = skillEff; return jpost(`/roster/technician/${encodeURIComponent(id)}/skills`, body) }

// ── Prise de RDV ──
export const bookJobs = () => jget('/roster/book/jobs')
// Méta de l'éditeur type→compétence : { service_types, skills, skill_by_type }
export const bookMeta = () => jget('/roster/book/meta')
export const bookSlots = (p) => jget('/roster/book/slots?' + new URLSearchParams(p).toString())
export const bookFit = (body) => jpost('/roster/book/fit', body)
export const bookConfirm = (body) => jpost('/roster/book/confirm', body)
// Hold temporaire d'une fenêtre (agent qui sélectionne) — { date, start, minutes } ou { date, start, release:true }
export const bookHold = (body) => jpost('/roster/book/hold', body)
// Lien client (token) pour un job → { token, url }
export const bookLink = (job) => jpost('/roster/book/link', { job })
// File « À recontacter » (jobs À reporter)
export const jobsToReschedule = () => jget('/roster/jobs-to-reschedule')
// Impact d'un retrait de compétence : jobs assignés exigeant cette compétence
export const skillImpact = (tech, skill) => jget('/roster/skill-impact?tech=' + encodeURIComponent(tech) + '&skill=' + encodeURIComponent(skill))
// Impact d'une absence : jobs assignés au tech sur ces dates (CSV)
export const absenceImpact = (tech, dates) => jget('/roster/absence-impact?tech=' + encodeURIComponent(tech) + '&dates=' + encodeURIComponent((dates || []).join(',')))
// Redistribuer ces jobs : mode 'auto' (re-match) ou 'requeue' (À recontacter)
export const redistributeSkillJobs = (jobs, skill, mode) => jpost('/roster/skill-impact/redistribute', { jobs, skill, mode })
// Candidats classés pour reprendre un job (techs qualifiés + libres au créneau)
export const jobCandidates = (job, exclude) => jget('/roster/job-candidates?job=' + encodeURIComponent(job) + '&exclude=' + encodeURIComponent(exclude || ''))
// Plan explicite : [{ job, tech } | { job, requeue:true }]
export const redistributePlan = (plan) => jpost('/roster/skill-impact/redistribute', { plan })
// Jobs non assignés (+ groupe/dépendances) pour le panneau glisser-déposer
export const unassignedJobs = () => jget('/roster/unassigned-jobs')
// Write-back legacy : aperçu (0 écriture) puis application (réassigne ticket.assign_to au tech dans osTicket)
export const pushLegacyPreview = () => jget('/dispatch/legacy-sync/push-assignments')
export const pushLegacyApply = () => jpost('/dispatch/legacy-sync/push-assignments', {})
// Fil complet d'un ticket legacy (osTicket) : messages + réponses, pour l'expand au clic
export const ticketThread = (id) => jget('/dispatch/legacy-sync/ticket-thread?id=' + encodeURIComponent(id))
// Fermer un ticket dans le legacy (status=closed + date_closed + closed_by=acteur + réouverture enfants)
export const closeLegacyTicket = (ticket) => jpost('/dispatch/legacy-sync/close-ticket?ticket=' + encodeURIComponent(ticket), {})
// Fermeture EN LOT (1 appel pour N tickets) — efficace
export const batchCloseLegacy = (ids) => jpost('/dispatch/legacy-sync/batch-close?tickets=' + encodeURIComponent(ids.join(',')), {})
// Assigner un job à un tech (date = case déposée)
export const assignJob = (job, tech, date) => jpost('/roster/assign-job', { job, tech, date })
// Fil complet d'un ticket legacy (description + commentaires/réponses des collaborateurs) — read-only
export const legacyTicketThread = (id) => jget('/dispatch/legacy-sync/ticket-thread?id=' + encodeURIComponent(id))
// Réordonner / re-prioriser les jobs d'un tech×jour : updates = [{ job, route_order, priority? }]
export const reorderJobs = (updates) => jpost('/roster/reorder-jobs', { updates })
// Retirer un job d'un tech (retour au pool non assigné)
export const unassignJobRoster = (job) => jpost('/roster/unassign-job', { job })
// Aviser le client d'un report : désassigne + SMS lien /book — { job, phone?, message? }
export const notifyReschedule = (body) => jpost('/roster/job/notify-reschedule', body)